Alaska Airlines Flights from Portland to San Antonio

Lowest fares from Portland to San Antonio

Apr 2026
From$299*
Seen: 10 hours ago
Flight Type One Way|Saver
May 2026
From$169*
Seen: 10 hours ago
Flight Type One Way|Saver
Jun 2026
From$196*
Seen: 10 hours ago
Flight Type One Way|Saver
$169
$489
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    • Range$169-$489

    *Displayed prices have been available within the past 24 hours and may not be available at the time of booking. Fares listed may be Saver fares, which is our most restrictive fare option and subject to additional restrictions. For roundtrip journeys, the price displayed—available within the past 24 hours—is the aggregate of the lowest available fare each way. Additional baggage charges and fees for optional products and services may apply. Other terms and conditions may apply.

    One-way low-fare flights Portland to San Antonio.*

    $
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    One-way low-fare flights Portland to San Antonio.*
    From
    To
    Fare Type
    Dates
    Price
    Portland (PDX)San Antonio (SAT)One-way
    |
    Saver    		Depart: May 13, 2026

    From

    $169

    Seen: 10 hours ago

    Portland (PDX)San Antonio (SAT)One-way
    |
    Saver    		Depart: May 19, 2026

    From

    $169

    Seen: 10 hours ago

    Portland (PDX)San Antonio (SAT)One-way
    |
    Saver    		Depart: May 12, 2026

    From

    $169

    Seen: 10 hours ago

    Portland (PDX)San Antonio (SAT)One-way
    |
    Saver    		Depart: Aug 25, 2026

    From

    $196

    Seen: 10 hours ago

    Portland (PDX)San Antonio (SAT)One-way
    |
    Saver    		Depart: Aug 26, 2026

    From

    $196

    Seen: 10 hours ago

    Portland (PDX)San Antonio (SAT)One-way
    |
    Saver    		Depart: Aug 12, 2026

    From

    $196

    Seen: 10 hours ago

    Portland (PDX)San Antonio (SAT)One-way
    |
    Saver    		Depart: Aug 11, 2026

    From

    $196

    Seen: 10 hours ago

    Portland (PDX)San Antonio (SAT)One-way
    |
    Saver    		Depart: Aug 18, 2026

    From

    $196

    Seen: 10 hours ago

    *Displayed prices have been available within the past 24 hours and may not be available at the time of booking. Fares listed may be Saver fares, which is our most restrictive fare option and subject to additional restrictions. For roundtrip journeys, the price displayed—available within the past 24 hours—is the aggregate of the lowest available fare each way. Additional baggage charges and fees for optional products and services may apply. Other terms and conditions may apply.

    Explore Alaska Airlines's Flights to Top-Pick Destinations